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NVENT HOFFMAN ETF300120 Thermostat/hygrostat
nVent HOFFMAN ETF300120 electronic thermostat and hygrostat for controlling temperature and humidity inside electrical enclosures.
£224.25
Why Choose the nVent HOFFMAN ETF300120 Thermostat/Hygrostat?
The nVent HOFFMAN ETF300120 is an adjustable electronic thermostat and hygrostat designed to monitor and control temperature and relative humidity inside electrical enclosures. As part of the nVent HOFFMAN ETF climate control accessory series, it helps prevent condensation, corrosion and moisture-related damage by controlling connected heaters and filter fans.
This combined thermostat/hygrostat provides independent temperature and humidity monitoring with adjustable switching thresholds. The device can automatically operate connected enclosure climate control equipment when required, helping maintain a stable internal environment and improve protection of sensitive electrical components.
With a 115 V AC supply voltage, adjustable temperature range of 32 °F to 140 °F and humidity adjustment range of 40–90% relative humidity, the ETF300120 is suitable for industrial control cabinets, automation enclosures and electrical systems requiring dependable climate management.
Key Advantages
- Combined electronic thermostat and hygrostat for enclosure climate control.
- Independent monitoring of temperature and relative humidity.
- Helps prevent condensation and corrosion inside electrical enclosures.
- Adjustable settings allow application-specific climate control.
- Controls connected heaters and filter fans automatically when required.
- Designed for simple installation on 35 mm DIN rails.
Key Features
- nVent HOFFMAN ETF climate control accessory series.
- Electronic thermostat/hygrostat combination.
- 115 V AC supply voltage.
- Temperature setting range: 32 °F to 140 °F.
- Humidity setting range: 40–90% R.H..
- IP20 protection rating.
- UL94 V-0 plastic housing.
- 35 mm DIN rail mounting clip.
- Normally open (NO) and normally closed (NC) contacts.
- Designed for control of enclosure heaters and filter fans.
Reliable Enclosure Climate Management
The nVent HOFFMAN ETF300120 protects electrical equipment by maintaining suitable temperature and humidity conditions inside enclosures. By automatically switching connected heating or ventilation equipment, it reduces the risk of condensation forming on sensitive components.
Designed for industrial automation and electrical cabinet applications, the ETF300120 provides flexible adjustment options and dependable switching performance for professional enclosure climate control systems.
Typical Applications
- Industrial electrical control cabinets.
- Automation and PLC enclosures.
- Switchgear and distribution cabinets.
- Outdoor electrical enclosures with climate requirements.
- Machine control panels.
- Industrial heating and ventilation control systems.
Technical Specifications
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| Device Type | Thermostat | |
|---|---|---|
| Accessory Type | Climate Accessories | |
| Country of Manufacture | Germany | |
| Manufacturer | nVent HOFFMAN | |
| Series | ETF Electronic Thermostat/Hygrostat | |
| Model | ETF300120 | |
| Product type | Electronic thermostat/hygrostat | |
| Supply voltage | 115 V AC | |
| Frequency | 50 / 60 Hz | |
| Temperature setting range | 32 °F to 140 °F | |
| Humidity setting range | 40–90% R.H. | |
| Operating temperature | -20 °C to +60 °C | |
| Switch capacity | 240 V AC, 8(3) A; 120 V AC, 8(3) A; 24 V DC, 4 A | |
| Connection | Pole terminal for 2.5 mm² | |
| Protection rating | IP20 | |
| Finish | RAL 7035 | |
| Mounting | 35 mm DIN rail (EN 60715) | |
| Service life | 50,000 cycles | |
| Weight | approx. 0.10 kg | |
| Approvals | CE, EAC, cULus_UL Listed |
Frequently Asked Questions
What is the nVent HOFFMAN ETF300120 used for?
The ETF300120 is an electronic thermostat and hygrostat used to control temperature and humidity inside electrical enclosures to help prevent condensation and corrosion.
What voltage does the ETF300120 require?
The ETF300120 operates from a 115 V AC supply at 50/60 Hz.
What temperature range can the ETF300120 control?
The thermostat provides an adjustable temperature setting range of 32 °F to 140 °F.
What humidity range can the ETF300120 monitor?
The hygrostat function provides an adjustable humidity range of 40–90% relative humidity.
How is the ETF300120 mounted?
The ETF300120 is designed for installation on a standard 35 mm DIN rail using its integrated mounting clip.
Trusted by Industrial Control Professionals
nVent HOFFMAN climate control accessories help engineers maintain reliable enclosure environments by preventing condensation, improving equipment protection and extending component service life.
